A jealous girlfriend allegedly stabbed her boyfriend to death after he greeted another woman on the street. Natacha Palavecino, 32, attacked her boyfriend Mariano Grinspun, 22, in González Catán, a town in Buenos Aires, on Monday, officials said. Police sources told Clarín newspaper that Palavecino plunged a kitchen knife into Grinspun's chest after he greeted the unidentified 22-year-old woman, who …
